# US 2023/0053345 A1 · Battery management apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0053345 A1 - Document ID: US20230053345A1 - Status: Published application - Kind: A1 - Application number: 17/796,930 - Filed: 2021-10-05 - Published: 2023-02-23 - Earliest claimed: 2020-10-05 - Assignees: LG Energy Solution, Ltd. - Applicants: LG Energy Solution, Ltd. - Inventors: Ho-Deuk CHOI - Web page: https://patentgrep.com/patent/US20230053345A1 ## CPC - H04L 12/4013: {Management of data rate on the bus (systems modifying transmission characteristics according to link quality H04L1/0001)} - H04L 12/40169: {Flexible bus arrangements (arrangements for maintenance or administration involving management of faults; events, alarms H04L41/06; automatic restoration of network faults H04L41/0654)} - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H04L 12/40071: {Packet processing; Packet format (adaptation of digital video signals for transport over a specific network H04N21/2381, H04N21/4363, H04N21/4381; packet switches H04L49/00; intermediate storage or scheduling H04L49/90)} - H04L 43/50: Testing arrangements - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2010/4278: {Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller} - H04L 2012/40215: {Controller Area Network CAN} - H04L 2012/40273: {the transportation system being a vehicle} - Y02E 60/10: Energy storage using batteries - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A battery management apparatus according to an embodiment of the present disclosure includes: a communication unit configured to output test information related to a battery; and a control unit configured to generate at least one test information related to the battery, select any one communication channel among a plurality of communication channels based on any one of a data amount of the generated test information and a state of the plurality of communication channels, generate a message packet including the test information based on a type of the selected communication channel and the data amount of the generated test information, and output the generated message packet to the selected communication channel through the communication unit. ## Claims ### Claim 1 A battery management apparatus, comprising: a communication circuit configured to output test information related to a battery; and a control circuit configured to: generate the test information related to the battery, select a communication channel among a plurality of communication channels based on at least one of a data amount of the generated test information and a state of the plurality of communication channels, generate a message packet including the generated test information based on a type of the selected communication channel and the data amount of the generated test information, and output the generated message packet to the selected communication channel through the communication circuit. ### Claim 2 (depends on 1) The battery management apparatus according to claim 1, wherein the control circuit is further configured to calculate a packet data amount required for the message packet based on the data amount of the generated test information and generate the message packet to include packet size information for the calculated packet data amount, packet identification information, and the generated test information, and wherein the packet identification information includes packet type information representing a type of the message packet and test request information for requesting a test for the battery. ### Claim 3 (depends on 2) The battery management apparatus according to claim 2, wherein the message packet includes a packet size information region in which the packet size information is recorded, a packet identification information region in which the packet identification information is recorded, and a data region in which the generated test information is recorded, and wherein the control circuit is further configured to determine the packet data amount based on the data amount of the packet size information, the packet identification information, and the test information. ### Claim 4 (depends on 3) The battery management apparatus according to claim 3, wherein when the generated test information is provided in a plurality of pieces of test information, and wherein the control circuit is further configured to include classification information corresponding to the number of the plurality of pieces of test information in the data region so that the plurality of pieces of test information are classified from each other. ### Claim 5 (depends on 1) The battery management apparatus according to claim 1, wherein the plurality of communication channels include: a first communication channel in which a maximum data amount of the test information capable of being transmitted at once is set to be equal to or less than a predetermined first standard amount; and a second communication channel in which the maximum data amount of the test information capable of being transmitted at once is set to be equal to or less than a predetermined second standard amount that is greater than the predetermined first standard amount. ### Claim 6 (depends on 5) The battery management apparatus according to claim 5, wherein the control circuit is further configured to: select the first communication channel among the plurality of communication channels, if the data amount of the test information is equal to or less than the predetermined first standard amount; and select the second communication channel among the plurality of communication channels, if the data amount of the test information exceeds the predetermined first standard amount and is equal to or less than the predetermined second standard amount. ### Claim 7 (depends on 5) The battery management apparatus according to claim 5, wherein the control circuit is further configured to: check a state of each of the first communication channel and the second communication channel, compare an estimated transmission time for each of the first communication channel and the second communication channel to transmit the test information, and select one of the first communication channel and the second communication channel for which the estimated transmission time is shorter. ### Claim 8 (depends on 1) The battery management apparatus according to claim 1, wherein the test information is battery cell information based on at least one of voltage, current, and temperature of a battery cell, or is battery pack test information based on at least one of voltage, current, insulation resistance, and temperature of a battery pack including the battery cell. ### Claim 9 (depends on 1) A battery test system, comprising the battery management apparatus according to claim 1. ### Claim 10 A battery management method, comprising: generating test information related to the battery; selecting a communication channel among a plurality of communication channels based on at least one of a data amount of the generated test information and a state of the plurality of communication channels; generating a message packet including the generated test information based on a type of the selected communication channel and the data amount of the generated test information; and outputting the generated message packet to the selected communication channel. ### Claim 11 (depends on 1) The battery management apparatus according to claim 1, wherein the communication circuit is connected to a communication bus, and wherein the communication circuit is further configured to receive a request for information and to transmit the generated message packet through the communication bus. ### Claim 12 (depends on 1) A vehicle, comprising: the battery management apparatus according to claim 1; the communication bus; and at least one electronic controller connected to the communication bus and configured to receive the generated message packet from the communication circuit of the battery management apparatus via the selected communication channel.